Radiator cap



Oct. 11, 1932.

K. E. STANT 1,882,097

RADIATOR CAP Filed May 1. 1929 2 Sheets-Sheet 1 F7 9 /////JJ KYLE E..STANT, pv

W-I JW Avaanny:

Oct. 11, 1932. K. E. STANT RADIATOR CAP Filed May 1. 1929 2 Sheets-Sheet 2 R 0 f m r, M M T s E n Y K 9 I I- m m .s 5

Patented Oct. 11, 1932 PATENT OFFICE KYLE E. STAN T, OF CONNERSVILLE, INDIANA RADIATOR CAP Application filed may 1, 1929. Serial No. 359,515.

/ My invention relates to radiator caps.

It is the object of my invention to provide a radiator cap that may be quickly and positively locked to a filler spout, which will be held in yielding engagement with the filler spout in the locked condition and will also be held in sealed condition preferably by the same means that holds the cap in locking condition.

It is a further object to provide such a combination of'parts that when the cap is removed the sealing, locking and yielding means will be retained within the cap so that they cannot become lost.

It is my especial object to provide a structure which will not rattle, which will be moisture and steam tight, of handsome, neat appearance and of very simple construction to eliminate repairs, replacements and to re- 2 duce cost of production.

It is my object to provide a mechanism which will readily fit with the minimum of close, limit manufacture and work in order to facilitate low cost production, which will I accommodate variations in dimensions due to variations in manufacture, and which will not allow leakage of liquids contained within the radiator closed by the cap of my invention.

Referring to the drawings:

Figure 1 is a section through a. filler spout and radiator cap of my invention;

Figure 2 is a perspective of the yielding, sealing ring;

Figure 3 is a section through a radiator cap and spout of my invention showing the modified form of spring;

Figure 4 is a section through a cap showing another variation of my invention;

Figure 5 is a topplan view of the filler spout showing slots, one of which is of unequal width with respect to the other but all slots are equally spaced from one another;

Figure 6 is a side elevation of said filler spout;

Figure 7 is a plan view of the filler spout showing slots of equal width but unequally spaced.

Referring to the drawings in detail, 1 is a filler spout having a turned-over, marginal edge which is turned over downwardly as at that serves to position laterally the radiator cap 3 which has a depending, annular skirt 4 engaging with the outside edge of the turned-over margin 2 of the filler 55 spout 1.

The skirt 4 is provided with a plurality of spaced, inwardly-disposed lugs 5 that engage with a series of cams 6 formed on the turned-over lip 2 of the filler spout.

It will be noted that the upper edge of the turned over lip 2 as at 7 is rounded. A sealmg washer, preferably of fiber, is provided as at 8 which rests over the end of the filler spout closing the spout and resting in sealing 55 engagement with the top surface 7 of the turned over edges 2 of the filler spout 1. Directly over this turned-over edge 2 above the washer 8 is located a sealing ring 9 havmg a plurality of struck-up spring fingers 10 which are located within a shoulder 11 of the radiator cap 3.

Between this spring member 9 and the washer 8 is a thin plate extending laterally at 12 to engage the shoulder 13 on the radiator 76 cap 3 to prevent the washer 8 and spring member 9 from becoming detached from the radiator cap when the cap is removed from the filler spout.

This thin plate 12 is preferably made of brass and is provided with the cars 12 for the purpose hereinbefore described.

Referring to Figure 3, it will be noted that the same essential elements are present of the filler spout, radiator cap, sealing washer, brass shim plate, rigid plate member, but instead of the spring fingers 10, a coil spring 14 is provided which is positioned by the depending sleeve 15 on the inside of the radiator cap2 3. eferring to Figure 4, it will again be noted that the same elements are present with the modification of the depending sleeve 15 by extending it downwardly into a lengthened boss designated 16 having a shoulder 17 for supporting a pair of washers 18 and 19 be tween which the gasket 8 is located. The cap plate 9 is struck-up centrally at 20 and is adapted to ride upon and be guided by the depending boss 16 carried by the cap 3.

This struck-up portion 20 of the plate 9 serves as a guide for the bottom of the helical spring 14 while the top of the spring is guided by the sleeve 16.

If the principle of locking is used as shown in Figure 5, I provide two small lugs 5 and one larger locking lug 5a which serves to position the radiator cap correctly and to lock the cap in satisfactory position. The effect of the spring 10 or the spring 14 is to hold the cap in yielding locked position with the lugs 5 in engagement with the cams 6.

If the principle is used as shown in Figure 6, the lugs 5 and their corresponding cams are unequally spaced which likewise serves to position the radiator cap in the exact position desired.

The depending skirt 4 serves to position the cap laterally with respect to the filler spout. v

The lugs 5 are made of the same width and are positioned to correspond to the width and position of the slots in the lip of the filler spout. For instance, in Figure 5, where the slots are of unequal width and equally spaced, the lugs will be correspondingly .formed. The cams have adjacent to them stops 21 to determine the amount of rotative movement the cap can have with respect to the spout.

I have designated the two slots that are of equal width as 22 and the slot of unequal width as 23, while I have designated all the slots of equal width but of unequal spacing as 24.

It will be understood that I desire to comprehend within my invention such modifications as may be necessary to adapt it'to varying conditions and uses.

Having thus fully described my invention, what I claim as new and desire to secure by- Letters Patent, is:

1. In combination, a filler spout having a turned-over cam edge, a radiator cap having locking lugs engaging cams on said edge, a depending boss from said radiator cap centrally from said filler spout, a sealing washer carried thereby, a reenforcing plate carried thereby, a helical spring pressing on said reenforcing plate and positioned thereby at its lower end while the upper end is positioned by said radiator cap boss.

2. In combination, a filler spout having a. turned-over cam edge, a radiator cap having locking lugs engaging cams on said edge, a depending boss from said radiator cap centrally from said filler spout, a sealing washer carried thereby, a reenforcing plate carried thereby, a helical spring pressing on said reenforcing plate and positioned thereby at its lower end while the upper end is positioned by said radiator cap boss, and gasket sealing means between said boss and said washer.

3. In combination, a filler spout, a. radiator cap having overlapping, depending skirt with locking lugs engaging said spout, a dethe cap on the spout.

pending, centrally arranged boss on said cap arranged within said s out, a washer freely supported thereon, a acking plate freely supported thereon, a spring engaging said plate and said cap adapted to permit said cap to rotate with respect thereto whereby said cap may rotate with respect to the spout, washer plate and spring.

4. The combination with a filler spout, of

a cap, a boss on the cap, a pair of washers H gasket tending to force the gasket against the spout, and means to lock the cap on the spout.

6. The combination with a filler spout, of a cap, a boss on the cap, a pair of'washers on the boss, a gasket mounted between the washers for engaging the spout, means between the cap and the gasket tending to force the gasket against the spout, said means including a plate and a spring pressing the plate against the gasket, and means to lock 7. The combination with a filler spout, of a cap, a boss on the cap, a pair of washers on the boss, a gasket on the boss between the Washers for engaging the spout, means around the boss between the cap and the gasket to force the gasket against the spout, said means including a plate and a spring pressing the plate against the gasket, and means to lock the cap on the spout.

8. The combination with a filler spout, of a cap having a centrally located inwardly projecting boss, a spring washer on the boss adjacent its end, a gasket rotatably mounted on the end of the boss adjacent the washer, and means on the boss cooperating with the washer in holding the gasket against the spout, said means consisting of a plate and a spring pressing the plate against the gasket.

In testimony whereof, I afiix my signature.

KYLE E. STANT. 

